Automatic carbureter-air-supply regulator.



E. W. JOHNSON. AUTOMATIC GARBURETER AIR SUPPLY REGULATOR. APPLICATION FILED OOT.29, 1913.

1,1 17,676. Patented Nov. 17, 1914 2 SHEETS-SHEET l.

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1, 1 1 7,676. Patented Nov. 17, 1914.

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ERNST W. JOHNSON, OF BROOKLYN, NEW YORK AUTOMATIC CARBURETER-AIR-SUPPLY REGULATOR.

To all whom it may concern Be it known that I, ERNST W. J OHNSON, a citizen of the United States, and residing at Brookl n, "in'the county of Kings and said carbureters, and the invention consists in an air supplying devlce connected with the carbureter or manifold thereof and having agravity control and also a control adapted to be operated by the fan used for .cooling the engine.

-' The invention is fully disclosed in the following specification of which the accompanying drawings form a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which Figure .1 is a view of a part of the manifold of the carbureter of a gas engine and showing my improved air supply regulator connected therewith ;Fig. 2 a section on the line 22 of Fig. 1 ;Fig. 3 a section on the line 33 of Fig. 2;Fig.' 4; a view similar to Fig. 1 but omitting the manifold and showing a modification partly in section, and Fig. 5 a section on the line 55 of n the accompanying drawings, Figs. 1 to 3 inclusive, I have shown at'a, a part of the manifold of the carbureter' of a gas engine used in connection with a power driven vehicle, and said manifold is provided with an aperture a and secured thereto and inclosing said aperture in an air inlet box I) having a closed outer end b in which are formed air inlet apertures b shown in full lines in Fig. 2, and indicated in dotted lines in Figs. '1 and 3. Mounted on the. closed outer endb of the box 6. is a gravity o-perated rotary register valve or valveplate 0 having apertures 0 similar to those in the end 6 of-the'box b, and adapted to register therewith, and the rotary plate 0 is niounted on a screw, pin, or bolt (2 secured centrally in the outer end 12 of the box I) and on which ismounted a spiral spring d which bears on the plate 0. he plate a is provided with Specification of Letters Patent.

ew York, have invented certain Patented Nov. 17, 1914:.

Application filed'october 29, 1913. Serial No. 797,918.

a depending pendulum 6 consisting of the usual rod e and weight 6 and secured to the end 6 of the box I) rearwardly of the pendulum is a stop pin f adapted to limit the backward movement of said pendulum. Pivoted over the plate 0 on a pin or screw 9 secured in the end b of the box I; is an arm it provided with a fan b and the arm h is provided with a cam head it adapted to bear on a stop pin a" secured to the end 6 of the box 6 and forwardly of which the plate 0 is provided with a stop pin i and the head k of the arm 72. is provided with a nose h which operates 1n connection with said scription when taken in connection with the accompanying drawing and the following statement thereof. In the position of the partsshown in Fig. 1, no air will enter" through the box 6, and this is the position assumed by the parts when the vehicle is going down hill, or in the direction of the arrow X, or when said Vehicle is coasting. When the vehicle is going up hill, as indicated by the arrow X the pendulum e and arm it will assume the position indicated at Y and Y and the air ports or apertures in the plate 0 and the end 6 of the box I; will be fully opened. When the vehicle is running1 on a level surface, or road, the wind from t e fan used forv cooling the motor will strike the fan if, as indicated by the arrow X and if a high speed is obtained, the fan h and arm h will be thrown into the position shown at Y in which position the air ports or passages in the plate 0 will be fully opened, and it will also be-understood that this operation is a gradual one and said air ports or passages belng gradu:

seen that with this construction, the supply of air, in the first instance, is automatically controlled by gravity throughout the operation of the pendulum e which serves as a weight, and in the second instance, by wind from the fan operated by the revolutions of the fan for cooling said engine, and in Figs. {l and v 5' I have shown a modification in which the essential features, or main operative parts are the same.

In the construction shown in Figs. 4 and 5, I substitute for the box 6 a circular casing j provided on the back side thereof and adj acent to the perimeter thereof with a tubular neck y'fthe end of which is threaded, as shown at y' and adapted to be screwed into the manifold a, and that portion of the side of the casing j with which the tubular neck j is connected is thickened, as shown at j*, and provided with a plurality of ports or passages 7' only two of which are shown and any desired number of which may be employed, and said ports or passages are shown in section in Fig. 5 and indicated in dotted lines in Fig. 4:. Passing through the casing j and through the thickened portion j thereof and into the tubular neck 9' is a shaft It provided with a register valve plate a which takes the place of the plate 0, in Figs. 1 to 3 inclusive, and the front end of said shaft is provided with a pointer le movable over the front face of the casing j, and the other or rear end thereof within the neck 3' is provided with a spring is which normally serves to hold the register valve plate 70 in a closed position, and said valve plate is is provided with ports or passages k? similar to the ports or passages 7' and two of which are shown. The register valve plate k is provided adjacent to one side edge thereof with a pin k on which is mounted a weight is which takes the place of the pendulum 0, shown in Figs. 1 to 3 inclusive, and this weightnormally aids in holding the register plate valve 70 in the closed position,

is as indicated in Fig. 4. Mounted diametrically of the casing j and at right angles to the shaft is is a shaft m one end portion m of which passes through the corresponding side of said casing, and a flexible shaft m is connected therewith, and a pulley m is connected with said flexibleshaft, and in the use of this device, the pulley m bears on the fly Wheel of the engine, not shown, so as to rotate the shaft m. The shaft m passes through a governor ring' 0 which is connected therewith by a pin 0 passed therethrough and through the sides of said ring and through a collar 0 mounted on said shaft, and the shaft m also passes through a circu- I lar disk 0 slidably mounted on said shaft and between which and the collar 0 is placed a spiral .spring 0 and one side portion of the ring 0 is connected with the disk 0 by cord or other flexible device 0 The disk 0 is provided with a deep annular in the face ofjfthe casing j,

groove 0" and the register valve plate 52 with a finger vp which operates in said groove, and I also provide a fan r having a handle 1' which passes through the slot r and which is pivoted to a support 1' in saidcasing, and inthe same diametric plane with the shaft is, and

the handle r of the fan 7* is provided with a finger piece T which also operates in the groove 0 of theldisk 12".- The face of the easing 7' is also provided with a curved scale plate 8 in connection with which the pointer k operates, and this plate is provided with numerals representing tens and multiples thereof fromzero, to. seventy, and in the operation of the engine, the pointer [1: moves over said scale plate and indicates the speed of the motor. The-operation of this form' of construction will be readily understood from the foregoing description when taken in connection with the accompanying drawings and the following statementf The normal position of the parts is that shown in Fig. 4,- and when the apparatus is in operation, the pulley m bears on the flywheel of the'en:

gine, andthe shaft m is rotated and as the speed increases, the governor ring 0 will assume the position shown in dotted lines, and the disk 0 will also move into the position shown in dotted lines, and this will open the register valve plate 70 and increase the supply of air to the engine, and this opera tion of the governor will be aided by the fan; 7' which is operated by the air from the fan by which the motor is cooled, as hereinbe;

fore set out in the description of the opera.

tion of the construction shown in Figs. 1; to 3 inclusive. Of course, the weight i0 and spring 0 always tend to return the parts to the position shown in full lines in Figs,

and it will thus be seen that the operation of,

this form of construction will be the same and willproduce results similar tothose produced by the operation ofthe construca tion shown in Figs. 1 to 3. It must be borne ioo in mind, however, that While I prefer to use p the fan r, in the construction shown in Figs. 4 and 5, this form of air supply regulator for carbureters may be used in connection with motors which do not employ cooling fans in which event the fan 1' of this form of a construction would not be necessary.

In the constructlon shown in Figs. 4 an slot 1' Having fully described my invention what; I claim as new and desire to secure byLet-i ters Patent is 1. The combination with the carbureter of a power driven vehicle of an air supply de-.; vice having a rotary valve and a weight. adapted to rotate said valve, and means; the engine will.

whereby the operation of also rotate said valve. v, t

2. The combination, with the carbureter ofa p owerdriven vehicle of an air supply; de-

\ engine of the vehicle.

4. The combination with the carbureter of a power driven vehicle, of an air supply device having a gravity operated rotary valve, 15

and means whereby the operation of the engine will also rotate said valve.

In testimony that I claim the foregoing as my invention I have signed my name in presence of the subscribing witnesses the 20 28th day of October 1913.

ERNST W. JOHNSON.

Witnesses G. MULREANY, S. ANDnEws. 

